I have good usage from several of these devices installed in wooden door frames but I am now having trouble replacing the batteries after 15 months. Pulling the circuit board out to get access to the old battery and replace it turns out to be rather difficult. I have only managed to pull 1 out and 3 others seem to be stuck fast. I had drilled holes to the specified diameter but remember that it was a fairly tight fit to get the sensor in in the first place. I am using a pair of sharp-nosed pliers and I am worried about breaking the circuit board if I pull even harder.
Anyone else been through this and have any tips? I have emailed Aeon Labs support to ask their advice.
It seems rather expensive if replacing the battery ends up breaking the circuit board!
As a secondary question, for the one I managed to get out and replace the battery - I had to completely remove it from ST and add it back in as a new device. Just changing the battery didn’t allow ST to recognise it again. Is that normal?